// Copyright 2022 Matrix Origin
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package bitmap

type Mask interface {
	Count() int
	Iterator() Iterator
}

type BMask struct {
	bm *Bitmap
}

func (b *BMask) Init(bm *Bitmap) {
	b.bm = bm
}

func (b *BMask) Count() int {
	return int(b.bm.Len())
}

func (b *BMask) Iterator() Iterator {
	return b.bm.Iterator()
}

var _ Mask = (*BMask)(nil)
